Could you provide a few more specifics like amounts of nutrients and additives used?
Do you use tap water or ro?
Temperature of nutrients?
Do you have an airpump/stone? How many ltr/min used?
How do your roots look? Any color change or slime? Do they smell funny?
- If it is indeed pythium or some form of algae, there are several ways to help get things back on track.
Hygrozyme & SM-90 have produced good results for algae control.
I prefer these two products:
Aquashield Bio-fungicide Water Treatment Solution is a mixture of several strains of beneficial bacteria, including Bacillis Subtillis, Paenibacillus Polymxa, Bacillus Circulans and Bacillus Amyloiquefaciens.
If root rot is present, decay will cease and new root growth will return. Fungi and bacteria will be inoculated, and signs of attack will slowly diminish, allowing plants to resume growth and flourish.
Trichoderma is not affected by FloraShield. It is very important not to leave the FloraShield in your reservoir for more than 2 hours.
Florashield is potent, so becareful when using.